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›› 2009, Vol. 9 ›› Issue (3): 613-617.

• 材料工程专栏 • Previous Articles     Next Articles

Preparation and Characterization of Iron-based High-temperature Water-gas Shift Catalysts with Ball Milling Method

LI Qiang FU Wei LI Qian ZHOU Guo-zhi LU Xiong-gang ZHEN Qiang   

  1. Key Laboratory of Modern Metallurgy and Material Preparation of Shanghai, Shanghai University Key Laboratory of Modern Metallurgy and Material Preparation of Shanghai, Shanghai University School of Materials Science and Engineering, Shanghai University College of Materials Science and Engineering, Shanghai University Shanghai Key Laboratory of Modern Metallurgy and Materials Processing School of Materials Science and Engineering, Shanghai University
  • Received:2008-11-25 Revised:2009-02-16 Online:2009-06-20 Published:2009-06-20
  • Contact: LI Qian

高能球磨法制备铁基CO高温变换催化剂及其性能表征

李强 付威 李谦 周国治 丁伟中 鲁雄刚   

  1. 上海大学上海市现代冶金及材料制备重点实验室 上海大学上海市现代冶金及材料制备重点实验室 上海大学材料科学与工程学院 上海大学材料学院 上海大学上海市现代冶金与材料制备重点实验室 上海大学材料科学与工程学院
  • 通讯作者: 李谦

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Abstract: The high-energy ball milling method was applied to prepare traditional iron-chromium-based CO high-temperature water gas shift reaction (WGSR) catalysts. The effects of milling time and K2O promoter on the catalytic activity of catalysts were investigated. The structure and morphology of catalysts were characterized by XRD, BET, and SEM, and the catalyst reducibility was measured by TPR. The results showed that the catalytic activity of catalysts without any treatment increased from 65.17% to 74.78% with the milling time increasing from 5 h to 15 h. In addition, the presence of K2O enhanced the catalytic activities, the catalytic activity of catalyst without any treatment increased from 65.17% to 87.02% for the catalyst milled for 5 h. After treating at 530℃ for 15 h, the CO conversion rate was still maintained at 85.11% at 450℃ for sample D, which bears comparison with the catalyst of B116.

Key words: ball milling method, water-gas, high temperature shift reaction, iron-based catalyst

摘要： 用高能球磨法制备铁铬系CO高温变换催化剂，探讨了球磨时间和K2O助剂对催化剂活性的影响，并采用XRD, SEM, BET, TPR对其进行表征. 结果表明，高能球磨法可以制备出高性能的铁铬系CO高温变换催化剂，其初活性随球磨时间的增加而增强，当球磨时间从5 h增加到15 h，催化剂活性从65.17%增加到74.78%. 添加K2O助剂后，相同球磨时间(5 h)的催化剂初活性由65.17%增加到87.02%. 球磨5 h后加入1% K2O的催化剂在530℃下耐热15 h后，450℃时的活性为85.11%，可与国产B116型催化剂(85.70%)相媲美.

关键词: 球磨法, 水煤气, 高温变换反应, 铁基催化剂

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